Pack or skip
Sunscreen for Busan in July
Verdict
Pack it
Sun still finds you at 81°F — UV doesn't care about temperature.
Why
Busan in July averages highs of 81°F, lows of 70°F, 14 rainy days.
That climate means sunscreen earns its space in the bag. Sun still finds you at 81°F — UV doesn't care about temperature.